Common Eider - Images 1 & 2 - S.m. dresseri. Males showing nice rounded frontal bill lobes. Variation in some females from dark reddish-brown to almost ginger-brown.
Common Eider - 3 - S.m. dresseri. Group containing a rather pallid, gray looking female/juv (center).
One rather gray, 'pallid' looking female caught my attention and stood out from the rest of the flock, the females of which were almost all reddish-brown, varying from dark red-brown to almost ginger-brown, but not gray or cold toned like this bird.
Common Eider - 5 & 6 - S.m. dresseri with gray looking female/juv (foreground). These images were taken in the shadow thrown from the wharf. The pale gray tones are less obvious here, but the bird still appears cold-toned compared the the accompanying dresseri.
Common Eider - gray female, race uncertain. This close-up (taken in shade) appears to show pointed rather than rounded frontal lobes - perhaps another indicator of a bird from from more Northerly populations?
Comments on the appearance of this bird and pointers to the racial identification of gray looking females would be most welcome.